Adrenal gland, Biology

Assignment Help:

ADRENAL OR SUPRARENAL GLANDS (GLANDS OF EMERGENCY) -

  • These are paired structures located on the top of the kidneys.
  • Each adrenal gland has two parts external adrenal cortex and internal adrenal medulla.
  • The adrenal cortex is derived from the mesoderm of the embryo & adrenal medulla from the ectoderm.
  • The cortex is surrounded by a fibrous capsule.
  • The adrenal cortex is differentiated into three regions or zones -

             (i) Outer, thin zona glomerulosa (15% of the gland)

             (ii) Middle, thick zona fasciculata (50% of the gland)

             (iii) Inner, thin zona reticularis (7% of the gland).

  • The cells of the zona fasciculata and zona reticularis contain vitamin C (ascorbic acid).

655_adrenal gland.png


Related Discussions:- Adrenal gland

World conservation strategy proposes various steps , WORL D CONSERVATION S...

WORL D CONSERVATION STRATEGY PROPOSES THE FOLLOWING STEPS - 1.       Preservation of critical habitats. 2.       Protection of wild life in situ (in natural habitats) as we

Solubility of oxygen, Solubility of Oxygen It is also important to kno...

Solubility of Oxygen It is also important to know that solubility of gases decreases with the presence of solutes or increased salinity. Table shows the solubility of oxygen a

Causes of gerd, In addition, pregnancy or constipation may worsen GERD by i...

In addition, pregnancy or constipation may worsen GERD by increasing intra-abdominal pressure. Secondary causes of GERD include reflux caused by acid hypersecretory states, connec

Describe how homologous recombination happening, Write about embryonic stem...

Write about embryonic stem cell invitro methord in which transgenic animal were generated and efficient show how homologous recombination happening?

Respiration, explain the respiration that takes place in different organism...

explain the respiration that takes place in different organisms??

Does sunlight kill bacteria, Does sunlight kill bacteria? Inoculate two...

Does sunlight kill bacteria? Inoculate two sterile bacteria dishes from a dish where bacteria are growing. Place single dish in the open sunlight and the other in a warm dark p

Solid or liquid at room temperature, do fats with one or more 'kinky' tail ...

do fats with one or more 'kinky' tail fatty acids tend to be solid or liquid at room temperature? These are found in triglycerides forming what? Solid fats or oils? Is it opposite

Define the use of computers in numerical taxonomy, Define the Use of Comput...

Define the Use of Computers in Numerical Taxonomy The use of computers in numerical taxonomy has made it possible to compare a large number of characters from many organisms wi

What is severity of the oesophagitis, Q. What is severity of the oesophagit...

Q. What is severity of the oesophagitis? The severity of the oesophagitis resulting from oesophageal reflux is determined by the content of gastric reflux mucosal resistance,

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd